CRITICALCVSS v3.1 9.8Vulnerability
CVE-2026-75128
Langchain-Chatchat through 0.3.1.3 exposes a POST /tools/call API endpoint that invokes any registered tool by name without authentication, leaving the always-registered shell tool callable. Remote attackers can send a single request naming the shell tool to execute arbitrary OS commands as the server user (root in the shipped Docker image).
Properties
- Severity
- CRITICAL
- Nvd fetched at
- 2026-10-20T21:14:08.448323+00:00
- Epss score
- 0.00522
- Cvss severity
- CRITICAL
- Cvss score
- 9.8
- Retrieved at
- 2026-10-21T01:24:50+00:00
- Last source
- FIRST EPSS
- Score
- 9.8
- Cvss version
- 3.1
- Cve id
- CVE-2026-75128
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- First seen by Signal
- 2026-10-20T04:27:34+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published at
- 2026-10-20T01:17:19.063
- Last modified
- 2026-10-20T20:06:37.150
- Epss percentile
- 0.43176
Related Entities (1)
HAS_WEAKNESS (1)
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